The ADOS ITR 498 infrared gas analysis system is suitable for continuous measurement of gases which exhibit
typical absorption bands in the infrared region of radiation.

Typically used for the measurement of carbon dioxide over the range of 0–5.000 ppm to 0–100 Vol%.
The ITR 498 is available as: transmitter with current output, as complete test unit with optical, acoustic and electrical output as well as a hand-held tester.

• Monitoring the ventilation and air conditioning, according to TRSK 313, for cellarage containing carbon dioxide bottles
• Monitoring the ventilation in fruit storage rooms
• Regulating climatic conditions in large open-plan offices or departmental stores
• Monitoring the maximum concentration at working places, according to TRGS 900 (MAC-value)
• Monitoring carbon dioxide fire extinguishing systems
• Analysing flue gases
• Monitoring production processes
  (e.g. fermenting processes)
• Optimising chemical processes
• and others
  

Gas extraction, filter, gas purifier, gas cooler, signal horn, warning lamps, warning banners, plotter, ventilation control accessories.

Other accessories are available, depending on specific measuring tasks, on request.

The ADOS ITR 498 gas analysis units function on the principle of non-dispersive infrared absorption.

The wide-band infrared radiation generated by the radiating element, passes through measurement and reference filters, then on to the gas measuring vessel.

The measurement filter allows the passage of infrared radiation in a wavelength range which includes the gas absorption bands of the gas to be measured. The reference filter on the other hand, allows the passage of a wavelength range in which there are no absorption bands of the gas.

From the absorption of the infrared radiation in the measurement chamber, the concentration of the gas is calculated and evaluated by a microcontroller.